Self-grinding valve



Oct. 23, 1934. o. J. OSTLIND SELF GRINDING VALVE Filed Aug. 11 1953 [NVEN TOR A 7'7'ORNE Y.

' 05cm? J05]. osr'u/vb 1; l m W Patented Oct. 23, 1934 1317.892 I saw-amuse vsLvE o Joel onus-s, fiat-heels. Oreg- Application August 11', 193:, Serial No. 884,870

'lclaims. (cum- 129) Q My invention relates to devices containing a movable valve and a flxed valve seat, of the type known as check valves and in which it is desirable in order to maintain the fluid tightnessof thevalve to rotate the valve somewhat with respectto its seat each time it operates.

Such rotation'has two beneficial results; the

' valve restsupon its seat in a different place at each time and tl'ieoreti cally if it can bemade to rotatejust as it closes; 'a slight grinding action of the valve with respect to itsjseat each time the valve closes" will, permanently keep both ele-' ments in the condition of a freshly ground valve and valve seat.

The idea of doing this is not new. Many attempts have been heretofore made to cause this rotation and self-grinding action and a considerablenumber of patents have been taken out, all of which use some type of propeller in connection with the valve to give the valve the desired rotation and in all of them that this inventor" is familiar with-the vanes of the propeller are above, or below the valve and spaced some distance from it and some are provided with propellers both above and below, so that the shielding action of the valve itself may not prevent the liquid flow from influencing the propeller to rotate the valve.

The result of all this is that the valve rotates freely when wide open when such rotation will not accomplish any useful p p se since the valve is then a long way from its seat, and it will fail to rotate Just as the valve leaves its seat and Just as it closes when that is the only period during the operation in which such rotation can have any self-grinding eflect.

The object of this inventionis to provide a structure that will eliminate the difliculties mentioned above and to produce a valve so arranged with respect to its seat and adjacent structures that it will have a decided rotary motion Just at the instant that'it leaves its seat and for a short distance above its seat as it opens to full capacity,

that will be beyond the influence of anyjrotative effect after opening to full capacity, and that will then come under theinfluence of currents tending to rotate the valve with'respect to its seat Just prior to and during the closing action. with the above stated objects in view and other advantages which will appear from the subjoined speciflcation. the invention resides in the structures, elements and combinations ofv elements de in the drawing'and described in the specification and claimed intbe We I "f c lity;

' FigJIis a section of Fig.1. 7

. and this rctative Inthedrawing*,--"

' Fig. I represents an embodiment of my new invention in" the form of a vertlcal check valve, though the outward shape o f thebody is not important audit is not intended to limit the in vention toa valve of this-type: it may be made in the g'lobefor angle valve" form withequal In the drawing a 'valve'b 3.11s shown-to be made in two parts with a join at 3a and a liquid inflow at 4, with an outflow -at5; which may be or otherwise arranged in any convenient manner. i 1

Within the valve body 3, is a valve seat 6, anda cooperating valve 7, shown here to have a guide stem 8, working within a guide 9, with a stop collar 10. Different types of valve guides may be provided. Mounted tly upon the top of the valve '7 and rigid ther with is a propeller 11,15 which is composed of a plurality of vanes as shown in Fig. II and any convenient arrangement of the number of the vanes and their shape may be adapted since propellers of all kinds are old and well-blown.

Immediately adjacent the discharge edge of the valve seat 6, at the point marked 60 of the discharge edge of the valve 7, marked 7a, is a reversing chamber 12, which constitutes the main contribution to-the art to be found in this invention. I

InFig.Ithevalveisshownslightlyraisedfrom its seat as it will be when just opening and just before it closes and fluid flowing upward through the valve from 4 in the direction of 5 and passing: between the valve and seat will, under the influence of this reverse chamber 12, take the dircction indicated by. the arrows in Fig. I, that is to say, directly against the vanes of the propeller 11, causing a positive rotation of the pro peller, l1,- and the valve 7, with respect to-the valve seat 6. As the valve opens further it isapparent that assoon as the propeller 11 passes beyond thhischarge'lipls. thepropeller 11 will no longer be under the influence of upwardlypassing fluid since it will be entirely shielded by the valve 1 and no rotation will take place.

As the flow slacks due to controlling a master valve, stopping of a pump. or in any other manner, the valve 7 will settle toward its seat 6 and the 10 propeller will be back under the influence of the reversing chamber lfliand the last end of the flow through the valve, and again assume the direction of rotation indicated bythe arrow in Fig. II;

movement of the valve 7 which will contact its seat while running will not only insure a diiIerent seating position each time the valve operates but will insure the sell-grinding so long sought but never attained to the degree of perfection possible with my new combination of a reversing chamber and a propeller. Variations in size or the propeller with respect to the diameter of the valve; variations in size oi! the reversing ring and its depth may be made to suit various conditions of operation. The arrangement 0! the vanes or propeller may follow any of the numerous designs well-known in the propeller art without departing from the principle of my new invention, which, having disclosed so that anyone familiar with the art to which it appertains can make and use it, what I claim as new and desire to secure by Letters Patent, is-

l. A self-grinding valve, deflned in part as a valve seat, a co-operating valve, propeller vanes superposed and rigidwith the valve and a reversing chamber positioned to surround the valve at its discharge edge, whereby liquid flow through the valve is directed against the propeller vanes.

2. In a selt-grindingvalve, a valve seat, a cooperating valve, guide members for the valve, propeller vanes superposed on said valve and rigid therewith and a cm-ved reversing r1118 P sitioned adjacent the discharge edges or the valve and seat that is adapted to direct ilowthrough the valve against the said propeller vanes when the valve is partly open.

3. In a sell-grinding valve, the combination of a valve and valve-seat, a propeller positioned above the valve and'rigid therewith or suchdiand vanes rigid with said ameter that it will be the valverrom influence by straight flow and a reversing chamber surroundingthe discharge edgeoithesaidvalve-seatthatisadaptedto directcurrentflowagainstthe saidpropellerwhen thevalveispartlyopened.

4. Inaseit-grindingvalve,a

influence or flow. a propeller superposedon said valve and shielded by the same and a reversing ring. for flow through said valve that directs flow against the propeller when the valve is adjacent but not touching its seat.

5. In acheek valvethecombinationo! avalve, a seat for'said valve, a reversing chamber positioned adjacent the discharge edges of said valve and seat and a propeller superposed on said valve positioned to be revolved under the influence of currents rromsaid reversing chamber to rotate said valve on its seat.

e. In a check valvethe combination 01a valve,

valveseaflavalve on said seat that is adapted to open under the a seat for said valve, a reversing chamber positioned adjacent the discharge edges of said valve and seat and propeller vanes positioned to be revolved under the influence of currents irom said reversing chamber to rotate said valve with respect to its seat. Y

7. In a check valve, a seat for said valve, a reversing chamber adiacent the discharge edges of said valve and seat valve adapt to cause said valve to' rotate \mder influence o! currents directediromsaidreversingchamber.

- OBCARJOEOBTLIND.

the combination or a valve. 

